Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jul. 03, 2021	Jul. 04, 2020
Operating Activities
Net income	$ 33,441	$ 421
Adjustments to reconcile net income to cash provided by operating activities of continuing operations:
Income from discontinued operations, net of income taxes	(77,088)	(67,857)
Depreciation of property and equipment	8,184	7,711
Amortization of intangible assets and other assets	22,902	20,486
Amortization of debt discount and debt issuance costs	11,822	8,359
Loss on extinguishment of convertible debt	3,370	3,685
Stock-based compensation expense	22,620	24,461
Deferred income taxes	(5,644)	1,177
Changes in operating assets and liabilities:
Accounts receivable	(4,377)	7,070
Inventories	(4,447)	8,021
Prepaid expenses and other assets	(5,489)	22,976
Accounts payable	14,711	(769)
Other current liabilities and income taxes	(10,626)	(15,480)
Deferred revenue and returns liability	(175)	6,678
Other non-current liabilities	(3,464)	1,146
Net cash provided by operating activities of continuing operations	5,740	28,085
Investing Activities
Purchases of marketable securities	(80,426)	(199,347)
Sales and maturities of marketable securities	286,649	255,112
Purchases of property and equipment	(10,779)	(9,051)
Purchases of other assets	(578)	(820)
Acquisition of businesses, net of cash acquired		(316,809)
Net cash provided by (used in) investing activities of continuing operations	194,866	(270,915)
Financing Activities
Proceeds from issuance of debt		845,000
Payments on debt	(140,572)	(597,446)
Repurchases of common stock	(18,982)	(16,287)
Payment of taxes withheld for vested stock awards	(19,732)	(16,756)
Proceeds from the issuance of common stock	8,388	7,757
Net cash provided by (used in) financing activities of continuing operations	(170,898)	222,268
Discontinued Operations
Operating activities	72,674	72,418
Investing activities	(2,018)	(1,343)
Net cash provided by discontinued operations	70,656	71,075
Increase in cash and cash equivalents	100,364	50,513
Cash and cash equivalents at beginning of period	202,720	227,146
Cash and cash equivalents at end of period	$ 303,084	$ 277,659